<!--  -->
<template>
    <div>
    <!--面包屑导航区-->
    <el-breadcrumb separator="/">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>商品管理</el-breadcrumb-item>
        <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片视图区域-->
    <el-card >
        <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="goAddpage">添加商品</el-button>
            </el-col>
        </el-row>
        <!-- table表格区域 -->
        <el-table :data="goodsList" border stripe>
            <el-table-column type="index" label="#"></el-table-column>
            <el-table-column  label="商品名称" prop="goods_name"></el-table-column>
            <el-table-column  label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
            <el-table-column  label="商品重量" prop="goods_weight" width="70px"></el-table-column >
            <el-table-column  label="创建时间" prop="add_time" width="150px">
                <template slot-scope="scope">
                        {{scope.row.add_time*1000 | dateFormat}}
                </template>
            </el-table-column>
            <el-table-column  label="操作" width="130px">
                <template slot-scope="scope">
                    <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[5, 10, 15, 20]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total" background>
        </el-pagination>
    </el-card>
    </div>
</template>

<script>
export default {
    data () {
        return {
            //查询参数对象
            queryInfo:{
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodsList: [],
            // 总数据条数
            total: 0
        }
    },

    created(){
        this.getGoodsList()
    },
    methods: {
        // 根据分页获取对应的商品列表
        async getGoodsList(){
            const {data:res} = await this.$http.get('goods',{params:this.queryInfo})
            if(res.meta.status !== 200) return this.$message.error('获取商品列表失败！')
            //console.log(res.data)
            this.goodsList = res.data.goods
            this.total = res.data.total
            //return this.$message.success('获取商品列表成功！')
        },
        // 监听当前页数变化的事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        // 监听当前页码变化的事件
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        // 根据id删除对应的商品
        async removeById(id){
            const confirmResult = await this.$confirm('此操作将永久删除该商品，是否继续？','提示',{
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            // 用户取消了删除操作
            if(confirmResult !== 'confirm') return this.$message.info('已取消删除！')
            // 删除的业务逻辑
            const {data:res} = await this.$http.delete('goods/'+id)
            if(res.meta.status !== 200) return this.$message.error('删除商品失败！')
            // 删除成功就关闭对话框并重新刷新列表数据
            this.$message.success('删除商品成功!')
            this.getGoodsList()
        },
        //添加商品的编程式导航
        goAddpage(){
            this.$router.push('goods/add')
        }
    },
}

</script>
<style lang='less' scoped>
    
</style>